Sedum plant named ‘TNSEDDM’

ABSTRACT

A new and distinct hybrid of Sedum plant substantially as shown and described characterized by glossy, green to olive green leaves with red serrated leaf margins, showy red stems, strongly upright stems, a medium, clumping habit, and excellent vigor.

Botanical denomination: Sedum (Hylotelephium) telephium.

Variety designation: ‘TNSEDDM’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Sedum(Hylotelephium) and given the cultivar name of ‘TNSEDDM’. Sedum is inthe family Crassulaceae. Sedum ‘TNSEDDM’ originated from a planned crossfor compact multicrowned Sedum using Sedum 424-8, as the seed parent,and Sedum 420-8, as the pollen parent. Both parents are unnamedproprietary, unpatented Sedum telephium seedlings.

The Trademark designation for this variety is Double Martini.

Compared to Sedum telephium 424-8, the seed parent, the new cultivar hasolive green leaves with red stems rather than green leaves with pinkstems.

Compared to Sedum telephium 420-8, the pollen parent, the new cultivarhas olive green leaves with red stems with multiple crowns rather thandark red leaves and few crowns.

Compared to Sedum ‘Rosetta’, U.S. Plant Pat. No. 26,190, the newcultivar has glossy green to olive green leaves with red leaf marginsand red stems rather than blue green leaves and green stems.

This new and unique Sedum is distinguished by:

-   -   1. glossy, green to olive green leaves with red serrated leaf        margins,    -   2. showy red stems,    -   3. strongly upright stems,    -   4. a medium, clumping habit, and    -   5. excellent vigor.

This new cultivar has been reproduced only by asexual propagation(division and tissue culture). Each of the progeny exhibits identicalcharacteristics to the original plant. Asexual propagation by divisionand tissue culture using standard micropropagation techniques withterminal and lateral shoots, as done in Canby, Oreg., shows that theforegoing characteristics and distinctions come true to form and areestablished and transmitted through succeeding propagations. The presentinvention has not been evaluated under all possible environmentalconditions. The phenotype may vary with variations in environmentwithout a change in the genotype of the plant.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a one and a half-year-old Sedum ‘TNSEDDM’ growing in fullsun in the trial bed outside in early June in Canby, Oreg.

FIG. 2 shows a two-year-old plant in the trial field in late June inCanby, Oreg.

FIG. 3 shows a close-up of the flowers in August.

FIG. 4 shows a close-up of a two-year-old plant in the trial field inlate June in Canby, Oreg.

DETAILED PLANT DESCRIPTION

The following is a detailed description of the new Sedum hybrid based onobservations of three-year-old specimens grown in the trial bed in fullsun under typical outdoor conditions in Canby, Oreg. Canby is Zone 8 onthe USDA Hardiness map. Temperatures range from a high of 95° F. inAugust to 32° F. in January. Normal rainfall in Canby is 42.8 inches peryear. The color descriptions are all based on The Royal HorticulturalSociety Colour Chart, 5^(th) edition, 2007.

-   Plant:    -   -   Type.—Herbaceous perennial.        -   Hardiness.—USDA Zone 4 to 9.        -   Size.—45 cm tall from the ground to the top of the            inflorescence and 50 cm wide.        -   Habit.—Erect, clumping.        -   Vigor.—Excellent.-   Stem: Unbranched.    -   -   Number.—About 120.        -   Size.—Grows to 40 cm long and 7 mm wide.        -   Internode length.—2 mm to 20 mm.        -   Surface.—Glabrous, glossy.        -   Color.—Red 53A to Greyed Purple 187A over a base color of            Yellow Green 146C.-   Leaf:    -   -   Type.—Simple.        -   Arrangement.—Alternate.        -   Shape.—Oblong to elliptic to ovate.        -   Apex.—Acute.        -   Base.—Attenuate.        -   Venation.—Pinnate.        -   Margins.—Serrate to biserrate.        -   Blade size.—Grows to 4.5 cm long and 2.2 cm wide.        -   Surface.—Glabrous on both sides.        -   Texture.—Thick, succulent.        -   Petiole.—None, leaves sessile.        -   Leaf color.—Spring top and bottom side Yellow Green 147B            with main vein Greyed Purple 187B on lower half of the leaf;            summer topside Yellow Green 147B tinted Greyed Purple 187B            under high sun intensity, with main vein Greyed Purple 187B            on the lower half to ¾ of the leaf, margins often lightly            tinted Greyed Purple 187A; bottom side Yellow Green 147B all            over with main vein Greyed Purple 187B on bottom ½ to ¾ and            margins 187A-   Inflorescence:    -   -   Type.—Terminal, corymbose, umbel-like.        -   Number of flowers.—About 600 per stem.        -   Peduncle.—None.        -   Rachis.—About 11 cm long and 6 mm wide, Greyed Purple 187A,            succulent, glabrous.        -   Pedicels.—Grows to 3.5 mm long and 0.5 mm wide, glaucous,            Brown 200B.        -   Size.—Grows to 13.5 cm long and 2.5 cm wide.        -   Bloom period.—August through September in Canby, Oreg.-   Flower bud:    -   -   Size.—2.5 mm wide, 4 mm deep.        -   Description.—Conical.        -   Color.—Greyed Purple 187C on top quarter blending to 186C.-   Flower:    -   -   Type.—Complete, actinomorphic.        -   Shape.—Stellate.        -   Size.—4.5 mm deep and 7 mm wide.        -   Color.—Greyed Purple 186B.        -   Corolla description.—4 mm deep and 7 mm wide, 5 petals, each            lanceolate, cupped or reflexed, 4 mm long and 1.5 mm wide,            margins entire, tip acuminate, base rounded, both sides            glabrous and Red Purple 59A on top half and lightening to            Red Purple 69B on bottom.        -   Calyx description.—1.5 mm deep and 3.5 mm wide, campanulate,            5 lobes, divided to the base, margins entire, tip acute,            glabrous, Grey Brown N200A on both sides.        -   Stamen description.—8 in number, 4 mm long, filaments 4 mm            long, Red Purple 64C, anthers 0.5 mm deep, shriveled, Black            203D, sterile, no pollen.        -   Pistil description.—5 separate prominent carpels, each 3 mm            deep and 1.5 mm wide, Greyed Purple 186C on top half to            Greyed Purple 186D on bottom half with stigma Greyed Purple            187A.        -   Fragrance.—None.        -   Lastingness.—Each stem lasts up to a month.-   Fruit:    -   -   Type.—Ventrally dehiscent follicle, erect, attenuate.        -   Fertility.—None.        -   Color.—Brown 200A.-   Seed: None seen.-   Disease and pest resistance or tolerance: Pest and disease    resistance are typical for this type of Sedum.

I claim:
 1. A new and distinct hybrid of Sedum plant as hereinillustrated and described.